drop and parse

Author: Pavan-Nambi

core/translate/alter.rs

@@ -813,6 +813,15 @@ pub fn translate_alter_table(
                     input,
                     |_program| {},
                 )?;
+
+                program.emit_insn(Insn::DropTrigger {
+                    db: 0,
+                    trigger_name: trigger_name.clone(),
+                });
+                program.emit_insn(Insn::ParseSchema {
+                    db: cursor_id,
+                    where_clause: Some(format!("name = '{trigger_name}'")),
+                });
             }
 
             program.emit_insn(Insn::SetCookie {

testing/trigger.test

@@ -867,4 +867,25 @@ do_execsql_test_in_memory_any_error trigger-returning-not-allowed {
   CREATE TRIGGER trg AFTER INSERT ON t1 BEGIN
     INSERT INTO t2 VALUES (NEW.id) RETURNING id;
   END;
-}
+}
+
+do_execsql_test_on_specific_db {:memory:} trigger-rename-column-old-ref {
+  CREATE TABLE t1 (id INT, val TEXT);
+  INSERT INTO t1 VALUES (1, 'a'), (2, 'b');
+  CREATE TRIGGER trg BEFORE DELETE ON t1 FOR EACH ROW BEGIN
+    UPDATE t1 SET val = 'deleted_' || OLD.val WHERE id != OLD.id;
+  END;
+  ALTER TABLE t1 RENAME COLUMN val TO val_new;
+  DELETE FROM t1 WHERE id = 1;
+  SELECT * FROM t1;
+} {2|deleted_a}
+
+do_execsql_test_on_specific_db {:memory:} trigger-rename-column-new-ref {
+  CREATE TABLE t1 (id INT, val TEXT);
+  CREATE TRIGGER trg AFTER INSERT ON t1 BEGIN
+    UPDATE t1 SET val = val || '_modified' WHERE id = NEW.id;
+  END;
+  ALTER TABLE t1 RENAME COLUMN val TO val_new;
+  INSERT INTO t1 VALUES (1, 'test');
+  SELECT * FROM t1;
+} {1|test_modified}